{"id":31481,"date":"2026-10-01T04:31:31","date_gmt":"2026-09-30T20:31:31","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-19445"},"modified":"2026-10-01T04:31:31","modified_gmt":"2026-09-30T20:31:31","slug":"cve-2026-19445","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-19445","title":{"rendered":"CVE-2026-19445 &#8211; A remote, unauthenticated TLS client can make a server crash or call\nthrough a freed point"},"content":{"rendered":"<p>A remote, unauthenticated TLS client can make a server crash or call<br \/>\nthrough a freed pointer if its sni_callback assigns a different context to<br \/>\nSSLSocket.context (the documented way to select a certificate per server<br \/>\nname) and nothing else keeps the original ssl.SSLContext alive. Typical<br \/>\ncases are servers that create an SSLContext per connection or replace it<br \/>\nwhile connections are open; servers that wrap their listening socket with<br \/>\nit are not affected.<\/p>\n<p>Mitigation: keep a reference to every SSLContext that sets sni_callback for<br \/>\nthe lifetime of the server. TLS clients are not affected.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>A remote, unauthenticated TLS client can make a server crash or call<br \/>\nthrough a freed pointer if its sni_callback assigns a different context to<br \/>\nSSLSocket.context (the documented way to select a certif<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-31481","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/31481","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln"}],"about":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/types\/vuln"}],"wp:attachment":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=31481"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=31481"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=31481"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}